--- “Why don’t you go to the Science Museum?” ---“I hear there’s ______ in it.”
He’s gone to the library, ________he?
It’s ten years since he _________ his hometown.
The students shouted with ________ when they heard the ________news.
Fred’s grandfather _______three years ago. He _______for three years.
—Excuse me, does Mr. Chen live here? —He ______ be here, but he has moved to Nanjing.